Ultrasonic Test (Leaving Cert Engineering): Flashcards
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Ultrasonic testing definition
Ultrasonic testing definition
NDT using high-frequency sound waves to detect internal flaws
NDT stands for
NDT stands for
Non-destructive testing
Fundamental principle of ultrasonic testing
Fundamental principle of ultrasonic testing
Sound reflection and echo
Form of sound waves in ultrasonic testing
Form of sound waves in ultrasonic testing
Pulse
Device emitting sound waves in ultrasonic test
Device emitting sound waves in ultrasonic test
Transducer
Display for ultrasonic test results
Display for ultrasonic test results
Oscilloscope
Waveform display showing echo patterns
Waveform display showing echo patterns
A-scan display
What crack echo indicates
What crack echo indicates
Reflection from internal flaw or defect
What back surface echo confirms
What back surface echo confirms
Wave reached material's far surface
Effect of flaw on sound wave path
Effect of flaw on sound wave path
Reflects back early, cannot travel through full thickness
Three types of echoes in A-scan
Three types of echoes in A-scan
Initial pulse, crack echo, back surface echo
Key advantage of ultrasonic testing
Key advantage of ultrasonic testing
Non-destructive, component remains usable after test
Critical requirement for reliable ultrasonic testing
Critical requirement for reliable ultrasonic testing
Skilled operators for correct interpretation
Sensitivity advantage of ultrasonic testing
Sensitivity advantage of ultrasonic testing
Highly sensitive - detects very small internal flaws
Ultrasonic testing application in transport
Ultrasonic testing application in transport
Railway maintenance - inspecting rail joints and track